apache - pom.xml中项目标签下的 "<url>http://maven.apache.org</url>"标签是什么？

Question

很长一段时间以来，我都将依赖管理工具用作 Maven。
我不明白 的必要性是什么网址 下 pom.xml 中的标记项目标签。

<project>
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.mycompany.app</groupId>
  <artifactId>my-app</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>Maven Quick Start Archetype</name>
  <url>http://maven.apache.org</url>

  <dependencies>
    ...
  </dependencies>
</project>

Answer 1

url 为您提供有关项目的信息，项目所在的位置

来自文档(http://maven.apache.org/pom.html):

url: The URL, like the name, is not required. This is a nice gesture for projects users, however, so that they know where the project lives.url: The URL, like the name, is not required. This is a nice gesture for projects users, however, so that they know where the project lives.

例子

乔达时间:

https://github.com/JodaOrg/joda-time/blob/master/pom.xml

  <packaging>jar</packaging>
  <name>Joda-Time</name>
  <version>2.8-SNAPSHOT</version>
  <description>Date and time library to replace JDK date handling</description>
  <url>http://www.joda.org/joda-time/</url>

Apache 公共(public)语言:
http://svn.apache.org/viewvc/commons/proper/lang/trunk/pom.xml?view=markup

  <inceptionYear>2001</inceptionYear>
  <description>
    Apache Commons Lang, a package of Java utility classes for the
    classes that are in java.lang's hierarchy, or are considered to be so
    standard as to justify existence in java.lang.
  </description>
  <url>http://commons.apache.org/proper/commons-lang/</url>